Meituan unveiled LongCat-2.0 on June 30, 2026 — a 1.6-trillion-parameter MoE model with 1M-token context, open-sourced under MIT license. The model was previously known as anonymous ‘Owl Alpha’ on OpenRouter. Meituan claims it is the first trillion-parameter model trained end-to-end on 50,000 domestic Chinese ASICs. Benchmarks include SWE-bench Pro 59.5 and Terminal-Bench 70.8. Available on GitHub, Hugging Face, and longcat.ai.